Shoulder-finishing attachment for road machines



June 12, 1928.

R. E. OCONNOR SHOULDER FINISHING ATTACHMENT FOR ROAD MACHINES FiledApril 27, 1927 Patented June 12, 1928.

UNITED STATES PATENT OFFICE.

ROBERT E. OCONNOB, 015 FORT WA YNE, INDIANA, ASSIGNOB TO THEBUFFALO-SPRING.- FIELI) ROLLER 00., OF SPRINGFIELD, OHIO, A CORPORATIONOF OHIO.

SHOULDER-FINISHING ATTACHMENT EOR ROAD MAGHIIT ES.

Application filed April 27, 1927. Serial No. 186,950.

This invention is a novel improvement in shoulder finishing attachmentsfor road machines and the principal-object thereof is to provide a mainand auxiliary outboard shoulder finishing attachment for tractors, roadrollers, and the like whereby the earth adjacent the margins of concreteor other hard surfaced roads will be graded, trimmed, or finished to thedesired width and angle 1 with respect to the hard surface of the road,

when the tractor or roller provided with my attachment is drawn ordriven over the hard road. The usual standardconcrete or other hardsurface highway must, by law,

be provided with a belt or strip of earth outside the limits of the hardsurface of the road, which belt or strip must be leveled off,

either horizontally or sloping downwardly, from the outer margins of theconcrete.

Another object of the invention is to provide a shoulder finishingattachment for road machines which can be readily attached to ordetached from the tractor or road-roller without altering the structureof the tractor or roller.

A further object of the invention is to provide an auxiliary outboardgrader blade disposed in advance of the main outboard grader blade, andsloping in the opposite direction for pushing the earth into the usualcavities adjacent the side margins of the concrete or like roadway, themain outboard grader blade grading the earth thus pushed up by theauxiliary blade and leveling same flush with the surface of theconcrete; the two blades being supported entirely by the vehicle frameso that the shoulder of earth will maintain a fixed angularity withrespect to the hard surface of the road.

Other minor objects of the invention will be hereinafter set forth.

I 'will explain the invention with reference to the accompanying drawingwhich illustrates one practical embodiment thereof to enable othersfamiliar with the art to adopt and use the same; and will summarize inthe claims the novel features of construction, and novel combinations ofparts, for which protection is desired.

In said drawings:

Fig. 1 is a top plan view of a road ma- A above and slightly chineequipped with my shoulder finishing attachmen Fig. 2 is a side elevationthereof.

Fig. 3 is an enlarged section on the line 33, Fig. 2.

The attachment is illustrated in connection with a road roller of thethree wheel type, such as shown in Letters Patent No. 60 1,607,227, theroller consisting of opposite Slde frames A, connected at their frontends by a trunnion head B in which the yoke of the front roller C isjournaled, the rear end of the side frames .A being supported by axle Dcarrying the rear wheels E at its ends exterior to the side frames. Sideframes A extend in rearof the axle D and usually carry an operatorslatform F. A motor G ]S usually mounted upon the side frames in front ofthe rear axle D. The above type of roller is well known and needsnoparticular description herein. The type of road machine however 1simmaterial and m attachment may be used in connection with any othertype of roller, tractor or road machine.

As shown in the drawings, my attachment COIIlfPIlSBS a transverselydisposed beam 1, pre erably a channel bar, mountedupon the rear ends ofthe side frames A and rojectmg on one side beyond the rear w ieel E,said beam 1 being detachably connected to the side frames with the flatside of the channel bar disposed towards the front. Disposed parallelwith the side frames A exterior to the adjacent rear wheel E is alongitudinal beam 2, preferably a channel bar having its rear enddetachably connected to the transverse beam 1, and its forward endsupported by a trunnion ring 3 carried by a bracket 3 mounted upon theupper face of said beam 2, said trunnion ring 3 engaga ing a collar 4which projects beyond and is mounted upon the end of the axle D. Collar4 is provided with a circumferential shoulder 4 intermediate its length,the portion of the collar 4 exterior to shoulder 4 being adapted toreceivering 3; and a plate 4" is removably bolted or otherwise connectedto the outer end of collar 4 whereby trunnion ring 3 will be rotatablysecured upon collar 4 between the shoulder 4" and the plate 4";

I The forward end 2 of beam 2 extends beyond the trunnion 3, and isinclined outwardly and forwardly at an angle of approximately 45 asshown in Fig. 1 and terminating at a point substantially oppositethefront portion of wheel E. I

Upon the beam 2 is a bracket 2 having a perforation through whichextends an adjustable hook rod 2 which engages an eye bolt 5 on theupper inner end of the main scraper blade 5. Blade 5 preferablycomprises a slightly curved plate having an angle bar 5 disposed alongits upper edge, the eye-bolt 5 being passed through a perforation in thehorizontal flange of bar 5". Blade 5 slopes outwardly and rearwardly atan angle of approximately 45 as shown in Fig. 1 and passes under theouter end' of the beam 1. An eye bolt 5 in the bar 5 at the outer end ofblade 5 engages a hook rod 1 extending through perforations in the outerend of beam 1, said rod 1 having a nut on its upper end whereby theheight of the outer end of blade 5*with respect to the ground may beadjusted.

The outer end of blade 5 is provided with an adjustable extension plate6 which is bolted at its lower end as at 6 to the blade 5 and has aseries of perforations 6 in its upper end adapted to register with aperforation in the upper end of blade 5 for the reception of a boltwhereby the angularity of the-extension 6 with respect to blade 5 may beadjusted.

From the above it will be seen that the blade 5 with extension 6 ispivotall suspended by the eye bolts 5 and 5? an hook rods 2, 1, andhence may be readily adjusted vertically by merely adjusting the saidhook rods.

In order to hold the blade 5 in vertical position for operation when themachine is moving forward, I provide so-called blade ushers 7 and 8,comprising straps rigidly but removably connected with the beams 1 and 2respectively, said beams extending outwardly and forwardly to meet thetop of the blade 5, and outer ends of blade pushers 7 and 8 being curvedto conform with the curvature of blade 5 but being disconnectedtherefrom. By the above construction when the machine is moving forward,the pushers 7' and 8 will maintain the blade 5 in vertical scrapingposition, but when the machine is moving backwards the blade 5 may hingeforwardly away from the curved outer ends of blade pushers 7 and 8 if anobstruction is encountered by the blade.

On the out-turned forward end 2 of beam 2 is a similarly auxiliary blade9 which is suspended by eye bolts 9 which engage adjustable hook rods 2which pass through perforations in the beam 2, and a blade pusher, 10 isremovably connected to the underside of beam 2 between the hook rods andslopes forwardly and downwardly to meet the upper end of blade 9, theouter end of pusher 10 being curved to conform with the curvature ofblade 9 whereby, as the machine is moving in a forward direction blade 9will be held in rigid position but may hinge forwardly if the machine ismoved in the opposite direction.

As above stated, the short blade 9 is inclined in the opposite directionfrom and is disposed in advance of the main blade 5, and as the machineis moving forwardl auxiliary blade 9 will scrape earth into t ie usualcavity or recess at the margin of the hard concrete road, and the mainblade 5, following blade 9, will then level the filled-in earth flushwith the surface of the concrete if blade 5 is adjusted to the properheight. The attachnient may readil be connected or disconnected as aunit 1:0m the road machine by merely removing beam 1 and the trunnion 3;and the parts of the attachment may be further disassembled forconvenience in storing or shipping. The attachment requires noalteration of the machine except the addition of collar 4 to the end ofaxle D.

I do not consider my attachment limited to use only with road rollers ofthe ty e herein described. Obviously same ma e used with any other typeof road machine. Also I do not consider my invention limited to the Iexact details shown in the drawing for obviously changes may be madetherein within the scope of the claims.

I claim:

1. In combination with a vehicle, a main outboard shoulder; finishingblade havin a fixed rearward inclination and swingably suspended on ahorizontal axis from the vehicle; and an auxiliary outboard blade havinga fixed forward inclination and disposed in advance of the inner end ofthe main blade and swingably suspended on a horizontal axis from thevehicle.

2. In combination as set forth in claim 1, a frame projecting from theside of said vehicle said blades being adjustably swingably suspended ateach end from the frame; and means for maintaining the blades inoperative position when the vehicle is moving in a forward direction,said means permitting the blades to swin forwardly when the vehicle ismoving in tie opposite direction.

3. In combination with a vehicle, a main outboard shoulder finishingblade swingably suspended on a horizontal axis from the vehicle andhaving a fixed inclination outwardly and rearwardl and an auxiliaryoutboard shoulder, finis ing blade swingably suspended on a horizontalaxis from the vehic e and disposed in advance of the inner end of themain blade and having a fixed inclnation in the opposite direction. v

4. In a combination as set forth in claim 3, an outboard frameprojecting from said vehicle; said blades being adjustably swingablysuspended at each end from the frame; am means for maintaining theblades in operative position when the vehicle is moving in a forwarddirection, said means permitting the blades to swing forwardly w ien thevehicle is moving in the opposite direction.

5. In combination with a vehicle, an out board frame; an inclinedshoulder finishing 10. blade adjustably swingably suspended at each endfrom said frame; and means for maintaining the blade in operativeosition when-the vehicle is movin in a orward direction, said meanspermitting the blade to swing forwardly when the vehicle is moving inthe opposite dlrectlon.

6. In a combination as set forth in claim 5, said means comprising apusher bar connected with said frame and engaging the rear face of theblade.

7. In combination witha road machine, an outboard frame carried by saidmachine; a shoulder finishing blade adjustably swingably suspended ateach end from said frame and inclined outwardly and rearwardly; andmeans for maintaing the blade in operative position when the machine ismoving in a forward direction, said means permitting the blade to swingforwardly when the maso chine is nioving in the opposite direction.

8. In a combination as set forth in claim 7, said means comprising a(pusher bar connected with said frame an rear face of the blade.

9. In combination with a road machine, an

outboard frame; a main shoulder finishing blade adjustably swingablysuspended at each end from said frame and inclined outwardly andrearwardly; an auxiliary blade adjustably swingably suspended at eachend from said frame in advance of the inner end of said main blade anddisposed forwardly and outwardly; and means for maintaining the bladesin operative position when the machine is moving in a forward direction,said means permitting the blades to swing forwardly when the machine ismoving in the opposite direction. 10. In a combination as set forth inclaim 9, said means comprising pusher bars connected with said frame andengaging the rear faces of the blades.

11. In combination with a road machine having a wheeled axle; atransversely disposed beam mounted on said machine and extending to oneside thereof; an outboard longitudinally disposed beam having one endconnected with said transverse beam; means for supporting the other endof the longitudinal beam; an inclined shoulder finishing blade havingits inner end adjustably sus pended from the longitudinal beam andhaving its outer end adjustably suspended from the transverse beam. 6512. In a combination as set forth in claim engaging the v 11, theforward end of the longitudinal beam sloping outwardly and forwardly;and an auxiliary blade adjustably suspended from the end of said beam.

13. In a combination as set forth in claim 11, said means for supportingthe front end of the longitudinal beam comprising a trunnion ringmounted on said beam; and an extension collar on the end of the axleengaging said trunnion ring.

14. I combination with a road machine, having a wheeled axle; atransversely disposed beam mounted on said machine and extending to oneside thereof; an outboard longitudinally disposed beam having one endconnected with said transverse beam; means for supporting the other endof the longitudinal beam; an inclined shoulder finishing blade havingits inner end swingably and adjustably suspended from the longitudinalbeam and having its outer end swingably and adjustably suspended fromthe transverse beam; and means for maintaining the blade in operativeposition when the vehicle is moving in a forward direction, said meanspermitting the blade to swin forwardly when the machine is moving in theopposite direction.

15. In combination with a machine as set forth in claim 14, the forwardend of the longitudinal beam sloping outwardly and forwardly,an-auxiliary blade swingably and adjustably suspended from the end ofsaid beam; and means for maintaining the blade in operative positionwhen the-machine is moving in the forward direction, said meanspermitting the blade to swing forwardly when the machine is moving inthe opposite direction.

16. In a combination as set forth in claim 14, said means for supportingthe front end ofthe longitudinal beam comprising a trunnion ring mountedon said beam; and an extension collar on the end of the axle engagingsaid trunnion ring.

17. In a combination as set forth in claim 14, said means formaintaining the blade in operative position comprising pusher barsconnected with said beams and engaging the .rear face of the blade.

18. In combination with a road machine having wheeled rear axle; atransversel disposed beam mounted on the rear end of said machine andextendin to one side thereof; an outboard longitu inally disposed beamhaving its rear end connected with said transverse beam; means forsupporting the forward end of the longitudinal beam; a main shoulderfinishing blade having its inner end swingably and adjustably suspendedfrom the longitudinal beam, said blade sloping outwardly and rearwardly,and having its outer end swingably and adjustably suspended from thetransverse beam; the forward end of the longitudinal beam slopingoutwardl" and forwardly; an auxiliary -blade swmgably and adjustablysuspended from the end of said beam; and means for ing in the oppositedirection,

19. In a combination as set forth in claim 18, said means for supportingthe front end of the longitudinal beam comprising a trunnion ringmounted on said beam; and an extension collar on the end of the rearaxle engaging said trunnion ring.

20. In a combination as set forth'in claim 18, said means formaintaining the blades in scraping position comprising pusher barsconnected with said beams and engaging the rear faces of the blades. 7

board fi'ame; a' main outboard shoulder finishing blade swingablysuspended on a 'hori-- zontal axis from the frame and having a fixedrearward inclination; and an auxiliary outboard shoulder finishing bladeswin'gably suspended on .a horizontal axis from the frame and disposedin advance of the inner end of the main blade and. having a fixedforward inclination.

22. In a combination as. set forth in claim '21, each of said bladesbeing adjustably.

s'wingablyisuspended at each end from the frame; and means formaintaining the blades in operative position when the vehicle is movingforwardly; said means permitting the blades to swing forwardly when thevehicle is moving rearwardly.- I

In. testimony that I-claiin-the foregoing as my own, I aflix mysignature. 2 1. In combination with a vehicle; an out a 7 ROBERT E.OCONNOR. I

